Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to The Editor, "The Colliery Guardian", 30 Furnival Street, Holborn, E.C.4. Letter giving permission to reproduce in "The Colliery Guardian" plate 12 of the paper by M.C. Stopes and R.V. Wheeler in the Proceedings of the Royal Society Volume 90 B 17 January 1923